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Posted to issues@kylin.apache.org by "Dayue Gao (JIRA)" <ji...@apache.org> on 2016/11/09 12:07:58 UTC

[jira] [Commented] (KYLIN-1609) Push down undefined Count Distinct aggregation to storage

    [ https://issues.apache.org/jira/browse/KYLIN-1609?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15650757#comment-15650757 ] 

Dayue Gao commented on KYLIN-1609:
----------------------------------

Hi [~lidong_sjtu], is there further plan on this? What's the motivation for pushdown count(distinct dim)?

> Push down undefined Count Distinct aggregation to storage
> ---------------------------------------------------------
>
>                 Key: KYLIN-1609
>                 URL: https://issues.apache.org/jira/browse/KYLIN-1609
>             Project: Kylin
>          Issue Type: New Feature
>          Components: Query Engine
>    Affects Versions: v1.5.1
>            Reporter: Dong Li
>            Assignee: Dong Li
>            Priority: Minor
>
> KYLIN-1016 already enabled count distinct aggregation on dimension which are not defined as COUNT_DISTINCT measures. But it's only in query engine level. This JIRA will push it deeper.



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